1,6-己二胺 、
maleopimaric acid 以
邻二氯苯 为溶剂,
反应 6.0h,
以50.6%的产率得到(3aR,3bS,3a'R,3b'S,5aR,5a'R,6R,6'R,9aR,9bR,9a'R,9b'R,11R,11aR,11'R,11a'R)-2,2'-(hexane-1,6-diyl)bis(12-isopropyl-6,9a-dimethyl-1,3-dioxo-1,2,3,3a,4,5,5a,6,7,8,9,9a,9b,10,11,11a-hexadecahydro-3b,11-ethenonaphtho[2,1-e]isoindole-6-carboxylic acid)